Alert archive / Connecticut / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 49, NWS Albany, NY

July 1, 2012Northwest Hills Planning Region, Connecticut; Dutchess County, New York

NWS Albany, NY issued this severe thunderstorm warning at Jul 1, 2012, 2:15 PM EDT for Northwest Hills Planning Region, Connecticut; Dutchess County, New York. It was in force for 60 min. 6 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 1, 2012, 2:15 PM EDT (18:15 UTC)
Expired
Jul 1, 2012, 3:15 PM EDT
In force
60 min
Issued by
NWS Albany, NY
Area
Storm-based polygon

Counties Northwest Hills Planning Region, CT, Dutchess County, NY

The radar

The Brookhaven radar (KOKX), 106 km from the middle of the area, began a volume at 18:17 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Jul 1, 2:34 PM EDTHAIL 0.75Sharon, CT
Jul 1, 2:35 PM EDTHAIL 0.75Sharon, CT
Jul 1, 2:35 PM EDTHAIL 1Warren, CT
Jul 1, 2:43 PM EDTHAIL 1Morris, CT
Jul 1, 2:45 PM EDTHAIL 1Litchfield, CT
Jul 1, 3:05 PM EDTHAIL 0.75Thomaston, CT

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jul 1, 1:35 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.3 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2012-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 254 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2012-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
254 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1757 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

896 
WUUS51 KALY 011815
SVRALY
CTC005-NYC027-011915-
/O.NEW.KALY.SV.W.0049.120701T1815Z-120701T1915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ALBANY NY
215 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN ALBANY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL LITCHFIELD COUNTY IN NORTHERN CONNECTICUT...
  EAST CENTRAL DUTCHESS COUNTY IN EAST CENTRAL NEW YORK...

* UNTIL 315 PM EDT

* AT 214 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  CORNWALL BRIDGE...OR 15 MILES NORTH OF NEW MILFORD...AND MOVING
  EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   CORNWALL BRIDGE POTTERY AND CORNWALL BRIDGE BY 225 PM EDT...
   LITCHFIELD GREEN AND LITCHFIELD BY 250 PM EDT...
   TORRINGTON BY 300 PM EDT...
   THOMASTON BY 310 PM EDT...
   NEW HARTFORD AND TERRYVILLE BY 315 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

PLEASE REPORT HAIL SIZE...DAMAGING WINDS AND REPORTS OF TREES DOWN TO
THE NATIONAL WEATHER SERVICE BY EMAIL AT ALB.STORMREPORT@NOAA.GOV OR
ON FACEBOOK AT WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN CONNECTICUT AND EAST CENTRAL NEW YORK.

&&

LAT...LON 4172 7356 4190 7355 4191 7291 4189 7294
      4185 7295 4184 7293 4182 7294 4180 7296
      4179 7301 4168 7298 4165 7299
TIME...MOT...LOC 1815Z 273DEG 18KT 4180 7344

$$
2 follow-up statements
045 
WWUS51 KALY 011844
SVSALY

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
244 PM EDT SUN JUL 1 2012

NYC027-011854-
/O.CAN.KALY.SV.W.0049.000000T0000Z-120701T1915Z/
DUTCHESS NY-
244 PM EDT SUN JUL 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DUTCHESS COUNTY
IS CANCELLED...

PLEASE REPORT HAIL SIZE...DAMAGING WINDS AND REPORTS OF TREES DOWN TO
THE NATIONAL WEATHER SERVICE BY EMAIL AT ALB.STORMREPORT@NOAA.GOV OR
ON FACEBOOK AT WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN CONNECTICUT AND EAST CENTRAL NEW YORK.

LAT...LON 4165 7299 4170 7338 4189 7337 4189 7294
      4185 7295 4184 7293 4182 7294 4180 7296
      4179 7301 4168 7298
TIME...MOT...LOC 1844Z 273DEG 18KT 4179 7325

$$

CTC005-011915-
/O.CON.KALY.SV.W.0049.000000T0000Z-120701T1915Z/
LITCHFIELD CT-
244 PM EDT SUN JUL 1 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR CENTRAL LITCHFIELD COUNTY...

AT 239 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR MILTON...OR 8 MILES WEST OF TORRINGTON...MOVING EAST AT
20 MPH.

THE SEVERE THUNDERSTORM WILL BE NEAR...
  LITCHFIELD GREEN...LITCHFIELD...HAIGHT VINEYARD AND DRAKEVILLE BY
  255 PM EDT...
  NEWBERRY CORNER...WEST TORRINGTON...WRIGHTVILLE AND TORRINGTON BY
  300 PM EDT...
  EAST LITCHFIELD BY 305 PM EDT...
  HARWINTON BY 310 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

HAIL UP TO 1 INCH IN DIAMETER HAS BEEN REPORTED IN WARREN WITH THIS 
STORM. IF YOU ARE IN THE PATH OF THE STORM...TAKE IMMEDIATE ACTION 
TO PROTECT LIFE AND PROPERTY.

PLEASE REPORT HAIL SIZE...DAMAGING WINDS AND REPORTS OF TREES DOWN TO
THE NATIONAL WEATHER SERVICE BY EMAIL AT ALB.STORMREPORT@NOAA.GOV OR
ON FACEBOOK AT WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN CONNECTICUT AND EAST CENTRAL NEW YORK.

&&

LAT...LON 4165 7299 4170 7338 4189 7337 4189 7294
      4185 7295 4184 7293 4182 7294 4180 7296
      4179 7301 4168 7298
TIME...MOT...LOC 1844Z 273DEG 18KT 4179 7325

$$
027 
WWUS51 KALY 011915
SVSALY

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ALBANY NY
315 PM EDT SUN JUL 1 2012

CTC005-011925-
/O.EXP.KALY.SV.W.0049.000000T0000Z-120701T1915Z/
LITCHFIELD CT-
315 PM EDT SUN JUL 1 2012

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LITCHFIELD COUNTY HAS
EXPIRED...

PLEASE REPORT HAIL SIZE...DAMAGING WINDS AND REPORTS OF TREES DOWN TO
THE NATIONAL WEATHER SERVICE BY EMAIL AT ALB.STORMREPORT@NOAA.GOV OR
ON FACEBOOK AT WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.ALBANY.GOV.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR NORTHERN CONNECTICUT AND EAST CENTRAL NEW YORK.

LAT...LON 4165 7299 4170 7338 4189 7337 4189 7294
      4185 7295 4184 7293 4182 7294 4180 7296
      4179 7301 4168 7298
TIME...MOT...LOC 1915Z 273DEG 18KT 4178 7304

$$

The office that day

Everything else NWS Albany, NY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 1, 1:16 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region59 min
Jul 1, 2:51 PM EDTSevere Thunderstorm WarningALYNorthwest Hills Planning Region33 min
Jul 1, 5:10 PM EDTSpecial Weather StatementALYWashington50 min
Jul 1, 5:50 PM EDTSpecial Weather StatementALYWashington40 min

Nearby

Severe Thunderstorm Warnings in Connecticut, 2012Severe Thunderstorm Warnings in New York, 2012Every severe thunderstorm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.